Congenital Heart Disease: Will My Child Have It? | Healos™
Family Planning and Genetics: Will My Child Have a Heart Defect?
For many adults with congenital heart disease, the question arrives quietly, often in their late twenties or thirties: "If we have a baby, will they have what I have?" It can carry guilt, fear and a lot of uncertainty.
The answer is more reassuring than many people expect.
Here is the short answer. Most children of parents with congenital heart disease are born with healthy hearts. Congenital heart defects occur in about 1% of all births; when a parent has one, the risk for each child is typically a few percent, often higher when the mother is affected, and much higher if the defect is part of a genetic syndrome. Genetic counselling, preconception planning and fetal echocardiography help you plan.
Planning ahead also means looking after your own heart before and during pregnancy, including the shared root of oxidative stress and inflammation that congenital hearts share with heart attack survivors (see one inflammation, three hearts).
简短的答案： 对很多先心病成人来说，这个问题常在二三十岁时悄悄出现：「如果我们要孩子，他会和我一样吗？」它可能带着内疚、恐惧和很多不确定。
答案比很多人预想的更令人安心：多数先心病父母的孩子心脏健康；先天性心脏缺陷在所有新生儿中约占 1%，父母一方患病时每个孩子的风险通常为百分之几，母亲患病时往往更高，若缺陷属于遗传综合征则高得多。
遗传咨询、孕前规划和胎儿心脏超声能帮你做好准备。提前规划也意味着在孕前和孕期照顾好自己的心脏，包括先天性心脏与心梗幸存者共有的氧化应激与炎症这一根源。
What is the chance my child will have a heart defect?
Background risk. Congenital heart defects affect about 1% of all births (CDC). Every pregnancy carries this baseline risk.
When a parent has congenital heart disease. In a large study of the children of adults with congenital heart disease, about 4% had a heart defect, and recurrence was generally higher when the mother was the affected parent (Burn et al., Lancet, 1998). Risk varies by the type of defect; some carry a higher recurrence than others. The child's defect, if present, isn't always the same as the parent's.
When a genetic syndrome is involved. Some congenital heart defects are part of a recognised genetic condition, such as 22q11.2 deletion syndrome, Noonan syndrome, Holt-Oram syndrome or Marfan syndrome. Many of these are inherited in an autosomal dominant pattern, meaning a child has up to a 50% chance of inheriting the condition, though how it affects the heart can vary widely (Pierpont et al., AHA Scientific Statement, Circulation, 2018).
These are general ranges. Your individual risk depends on your exact diagnosis, family history and any genetic findings, which is what genetic counselling is for.
孩子有心脏缺陷的几率有多大： 背景风险：先天性心脏缺陷约占所有新生儿的 1%（CDC），每次怀孕都有这一基线风险。
父母一方患先心病时：一项大型研究中，先心病成人的子女约 4% 有心脏缺陷，且母亲患病时复发率通常更高（Lancet 1998）；风险因缺陷类型而异，孩子若有缺陷也不一定与父母相同。
涉及遗传综合征时：部分先心病属于已知遗传疾病的一部分，如 22q11.2 缺失综合征、Noonan 综合征、Holt-Oram 综合征或 Marfan 综合征，其中很多为常染色体显性遗传，孩子遗传该疾病的几率可高达 50%，不过对心脏的影响差异很大（AHA 科学声明 2018）。
这些都是一般范围，个人风险取决于具体诊断、家族史和基因检测结果——这正是遗传咨询的作用。
Genetic counselling and testing: what to expect
A genetic counsellor or medical geneticist will review your diagnosis, family history and any features suggesting a syndrome. They may recommend testing, such as a chromosomal microarray or a targeted gene panel, to look for conditions like 22q11.2 deletion. Results can clarify your own health as well as your child's risk.
Testing is your choice, and counselling helps you decide what information is useful to you. In Canada, the Genetic Non-Discrimination Act means you can't be required to take a genetic test or share results to get insurance (see work, insurance and disclosure).
遗传咨询与检测：会经历什么： 遗传咨询师或医学遗传学医生会审阅你的诊断、家族史以及任何提示综合征的特征，可能建议做染色体微阵列或靶向基因检测，以寻找 22q11.2 缺失等疾病；结果既能明确你自己的健康状况，也能明确孩子的风险。
是否检测由你决定，咨询会帮你判断哪些信息对你有用。在加拿大，《基因非歧视法》意味着不能要求你做基因检测或分享结果作为投保条件。
Fetal echocardiography and planning a pregnancy
If you or your partner has congenital heart disease, guidelines recommend a fetal echocardiogram, a detailed ultrasound of the baby's heart, usually around 18 to 22 weeks of pregnancy (Donofrio et al., Circulation, 2014). Many significant defects can be seen then, which gives time to plan delivery at a centre with paediatric cardiology if needed.
For people who will carry the pregnancy themselves, there's a second, equally important question: how will pregnancy affect my own heart? Pregnancy increases blood volume and heart workload considerably. Your ACHD team can estimate your risk class, review medications that aren't safe in pregnancy, such as some anticoagulants and blood pressure drugs, and plan monitoring. Ideally, this conversation happens before you start trying, along with standard steps such as folic acid.
胎儿心脏超声与妊娠规划： 如果你或伴侣患有先心病，指南建议做胎儿心脏超声——对胎儿心脏的详细超声检查，通常在孕 18–22 周（Circulation 2014）；很多重要缺陷届时可以看到，便于必要时安排在有儿童心脏科的中心分娩。
对于自己怀孕的人，还有一个同样重要的问题：怀孕会如何影响我的心脏？妊娠会显著增加血容量和心脏负担，ACHD 团队可以评估你的风险分级、复查孕期不安全的药物（如部分抗凝药和降压药）并规划监测。理想情况下，这个对话在开始备孕之前进行，同时做好补充叶酸等常规准备。
Questions to bring to your teams
Is my heart defect part of a genetic syndrome, and should I be tested?
What's the recurrence risk for my specific diagnosis?
When should we have a fetal echocardiogram, and where?
What is my own risk during pregnancy, and which medicines need to change?
Where should I deliver, and who will be involved?
What follow-up will I need after the baby is born?
可以带去问团队的问题：
我的心脏缺陷是否属于某种遗传综合征，需要检测吗？
我的具体诊断复发风险是多少？
什么时候、在哪里做胎儿心脏超声？
我自己在孕期的风险有多大，哪些药物需要调整？
应该在哪里分娩，哪些团队会参与？孩子出生后我需要哪些随访？
ACHD special considerations
If you're planning a pregnancy, check every medication and supplement with your ACHD team and pharmacist, including any nutrition plan such as Healos™; some are unsuitable in pregnancy and doses may need to change. Many adults with a Fontan circulation or heart failure have a fluid limit. Anticoagulants need a specific pregnancy plan. Endocarditis prevention matters around delivery for many repaired hearts. Rhythm problems, cyanosis and pulmonary hypertension can change pregnancy risk dramatically. Your ACHD team's guidance overrides any general advice, including ours.
ACHD 特别注意： 如果正在备孕，请与 ACHD 团队和药剂师核查每一种药物和补充剂，包括 Healos™ 等任何营养方案——部分在孕期不适用，剂量也可能需要调整。很多 Fontan 循环或心衰患者需要限制液体；抗凝药需要专门的孕期方案；很多修复后的心脏在分娩前后需要预防心内膜炎；心律问题、发绀和肺动脉高压会大幅改变妊娠风险。你的 ACHD 团队的指导高于任何通用建议，包括我们的。
How Healos™ supports adults with congenital heart disease
Planning a family is a long horizon, and so is congenital heart care. The 91-Day Protocol moves through Clear, Replenish and Repair, three sequenced stages of complementary cellular nutrition and lifestyle support, with check-ins at days 30, 60 and 91 that track energy, sleep and activity. Sovereign Monthly · Protect continues that support month to month. If you're planning or expecting a pregnancy, tell us and your ACHD team first; plans may need to pause or change.
Healos™ 如何支持先心病成人： 组建家庭是长远的规划，先心病照护也是。91 天方案依次经过减负、补给、修复，提供辅助的细胞级营养与生活方式支持，并在第 30、60、91 天追踪精力、睡眠和活动；Sovereign Monthly · Protect 按月延续支持。如果你正在备孕或已怀孕，请先告诉我们和你的 ACHD 团队，方案可能需要暂停或调整。
The bottom line
Most children of parents with congenital heart disease have healthy hearts. The risk is a few percent for most people, higher when the mother is affected and much higher with some genetic syndromes. Genetic counselling clarifies your own numbers, a fetal echocardiogram around 18 to 22 weeks gives early answers, and a preconception visit with your ACHD team protects your own heart too.
结论： 多数先心病父母的孩子心脏健康。对多数人来说风险是百分之几，母亲患病时更高，部分遗传综合征则高得多。遗传咨询能明确你自己的数字，孕 18–22 周的胎儿心脏超声能尽早给出答案，而孕前与 ACHD 团队的一次面谈也在保护你自己的心脏。
Frequently asked questions
If I have congenital heart disease, will my child have it? Most children of affected parents have healthy hearts. Background risk is about 1%; with a parent who has congenital heart disease it's typically a few percent, about 4% in one large study, higher when the mother is affected and up to 50% with some genetic syndromes.
Is the risk higher if the mother has congenital heart disease? Generally yes. Studies have found higher recurrence in children of affected mothers than of affected fathers, though the exact risk depends on the specific defect.
Should I have genetic testing before pregnancy? It's worth discussing with a genetic counsellor, especially if your defect could be part of a syndrome such as 22q11.2 deletion or Noonan syndrome. Testing is your choice, and counselling helps you decide.
When is a fetal echocardiogram done? Usually around 18 to 22 weeks of pregnancy. It's recommended when a parent has congenital heart disease and can identify many significant defects in time to plan delivery.
常见问题：
我有先心病，孩子会遗传吗？多数孩子心脏健康，背景风险约 1%，父母一方患病通常为百分之几（一项大型研究约 4%），母亲患病时更高，部分遗传综合征可高达 50%。
母亲患病风险更高吗？一般是的，具体取决于缺陷类型。
孕前要做基因检测吗？值得与遗传咨询师讨论，尤其可能属于 22q11.2 缺失或 Noonan 综合征时，是否检测由你决定。
胎儿心脏超声什么时候做？通常孕 18–22 周，父母有先心病时推荐。
References
Centers for Disease Control and Prevention. Data and statistics on congenital heart defects.
Burn J, et al. Recurrence risks in offspring of adults with major heart defects: results from first cohort of British collaborative study. Lancet. 1998;351(9099):311–316.
Pierpont ME, et al. Genetic basis for congenital heart disease: revisited. A scientific statement from the American Heart Association. Circulation. 2018;138(21):e653–e711.
Donofrio MT, et al. Diagnosis and treatment of fetal cardiac disease: a scientific statement from the American Heart Association. Circulation. 2014;129(21):2183–2242.
